src/GtkGif.cpp


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

#include "../include/GtkGif.hpp"

namespace dchat
{
    GtkGif::GtkGif(StringView fileContent) : 
        Gif(fileContent)
    {
        //signal_draw().connect(sigc::mem_fun(*this, &GtkGif::updateContent));
        set_app_paintable(true);
    }

    bool GtkGif::createTexture(int width, int height)
    {
        surface = Cairo::ImageSurface::create(Cairo::Format::FORMAT_ARGB32, width, height);
        return true;
    }

    void GtkGif::updateTexture(void *textureData)
    {
        unsigned char *pixels = surface->get_data();
        memcpy(pixels, textureData, surface->get_stride() * surface->get_height());
    }

    bool GtkGif::on_draw(const Cairo::RefPtr<Cairo::Context> &cairo)
    {
        update();
        cairo->set_source(surface, 0.0, 0.0);
        cairo->fill();
        return true;
    }
}